What happens if my solo-mined block becomes an orphan?

If your solo-mined Monero block becomes an orphan, it does not earn you a spendable block reward or transaction fees. Your block may have been valid, but another competing block became part of the chain the network kept, so the electricity and computing work you spent are not refunded.

Why a valid block can lose

An orphan is the common mining term for a block that does not remain in the accepted blockchain—the shared history of transactions. You may also see it called a stale block or an alternative block.

This can happen without you doing anything wrong. You and another miner can find valid blocks at almost the same time. Different parts of the network may briefly see different versions of the latest history.

Monero nodes—the computers that check and share blocks—follow the valid chain with the most accumulated mining work. Once one competing chain has more work, nodes switch to it. If your block is on the losing branch, it no longer counts toward your mining income.

What happens to your reward

As of 2026, an accepted Monero block normally earns a base reward of 0.6 XMR, plus transaction fees. The base reward can be reduced by Monero’s block-size penalty. An orphaned block earns neither.

Your mining software might initially report that it found or submitted a block. Your wallet might also briefly show an incoming mining reward if your node accepted that block before switching chains.

That does not mean the reward is ready to spend:

• Newly mined Monero stays locked for 60 blocks, roughly two hours at the average two-minute block interval.
• If your block leaves the accepted chain, its reward is no longer valid on that chain.
• After your wallet synchronizes with the updated history, the reward should stop counting toward your balance.

The lock gives the network time to build more history above your block. It does not insure your reward against an orphan.

What happens to the transactions and your next attempt

Ordinary transactions inside your orphaned block are not automatically lost. Transactions that remain valid can return to the transaction pool, the waiting area for unconfirmed transactions, unless they already appear in the winning chain. Another miner can then include them.

You cannot claim the fees for those transactions just because you included them first in your losing block.

Your miner should switch to work based on the latest accepted block. You do not receive extra credit toward your next attempt, and you are not “due” a replacement reward. Each new mining attempt has its own chance of success.

What you should check

One orphan does not necessarily mean your setup is faulty. Repeated orphans are a reason to investigate.

• Keep your Monero node fully synchronized and your software current.
• Check that your internet connection is stable and your node has healthy peer connections.
• Make sure your miner receives fresh work promptly rather than continuing on an old block.
• Compare your node’s block history with a reliable explorer if a reward appears to disappear.

For direct solo mining, there is no pool balance or shared payout to soften the loss. Running your own node helps you verify what happened, but it cannot prevent every competing-block race.

The bottom line

An orphaned solo-mined block means no spendable reward, even if your work was valid. Confirm that your node and miner are following the accepted chain, then continue mining knowing that occasional block races are an unavoidable risk.